antibacterial vs medicament

antibacterial and medicament both are nouns.

Word	Noun	Adjective	Verb	Adverb
antibacterial	Yes	Yes	No	No
medicament	Yes	No	No	No

As nouns, medicament is a hypernym of antibacterial; that is, medicament is a word with a broader meaning than antibacterial:

antibacterial: any drug that destroys bacteria or inhibits their growth
medicament: (medicine) something that treats or prevents or alleviates the symptoms of disease

Other hypernyms of antibacterial include medication, medicinal drug, medicine.

antibacterial (noun)	medicament (noun)
any drug that destroys bacteria or inhibits their growth	(medicine) something that treats or prevents or alleviates the symptoms of disease

antibacterial (adjective)	medicament (adjective)
destroying bacteria or inhibiting their growth